Finding a way to fit Fowler on next year's team might be the top priority for me. He was so important to this team this year.
I'd also prefer Jansen to Chapman. If neither of them, Melancon wouldn't be a bad target. They should add a closer though...I'm scared to rely on Rondon with his non-specific arm problems.
Might be nice to add a second reliever too. I think Strop will be fine with an offseason to rest his knee, but I wouldn't rely on Rondon as even the second setup guy. His injury history is just too long to ignore his arm problem.
They should pick up Hammel's option and trade him. With the free agent market the way it is, he should be reasonably valuable. Search for an established controllable starter...but I'm completely comfortable going into the season with Montgomery as the #5 starter.
It seems almost inevitable that AJ Ellis will be the top target to be Lester's personal catcher next year.